WO2005033497A1 - 排熱回収装置 - Google Patents
排熱回収装置 Download PDFInfo
- Publication number
- WO2005033497A1 WO2005033497A1 PCT/JP2004/013952 JP2004013952W WO2005033497A1 WO 2005033497 A1 WO2005033497 A1 WO 2005033497A1 JP 2004013952 W JP2004013952 W JP 2004013952W WO 2005033497 A1 WO2005033497 A1 WO 2005033497A1
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- WIPO (PCT)
- Prior art keywords
- cylinder
- heater
- heat recovery
- piston
- heat medium
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2254/00—Heat inputs
- F02G2254/15—Heat inputs by exhaust gas
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to an exhaust heat recovery apparatus, and more particularly, to an exhaust heat recovery apparatus that can be attached to an exhaust passage of an internal combustion engine, a factory exhaust heat exhaust passage, or the like while suppressing a decrease in exhaust heat recovery efficiency. .
- Patent Document 1 discloses a V-type Stirling engine in which the ineffective volume of the engine is minimized, the engine performance can be sufficiently maintained, and the number of welded portions of the heat transfer tube can be significantly reduced.
- Patent Document 1 Japanese Utility Model Application Laid-Open No. 4-89836
- Patent Document 1 does not disclose a specific configuration for attaching a Stirling engine to an exhaust pipe or the like of an internal combustion engine.
- the present invention has been made in view of the above, and it is an object of the present invention to suppress a decrease in exhaust heat recovery efficiency and attach the exhaust heat to an exhaust passage of an internal combustion engine or a factory exhaust heat exhaust passage.
- An object is to provide a recovery device.
- an exhaust heat recovery device includes a first cylinder and a first cylinder.
- the heat medium passage is characterized in that a side end surface and the device mounting surface are parallel to a cooler connection side end surface of the second cylinder.
- the exhaust heat recovery device is mounted on the heat medium passage with the device mounting surface provided in the heat medium passage, the heater connection side end surface and the cooler connection side end surface of the cylinder being parallel to each other.
- the respective pipe lengths of the cooler and the regenerator can be made uniform, so that the temperature distribution of the working fluid introduced into the second cylinder from the cooler power can be reduced.
- the exhaust heat recovery device can be attached to the exhaust passage of the internal combustion engine, the exhaust heat exhaust passage for the factory, and the like while suppressing the decrease in the exhaust heat recovery efficiency.
- the exhaust heat recovery apparatus includes a first cylinder and a second cylinder, a first piston and a second piston that reciprocate in the first cylinder and the second cylinder, A heat exchanger including a heater connected to the first cylinder, a regenerator connected to the heater, and a cooler connected to the regenerator and connected to the second cylinder.
- a crankshaft connected to the first piston and the second piston by a connecting rod to convert a reciprocating motion into a rotary motion, and having a device mounting surface and a heat medium passage through which a heat medium passes.
- the heater is disposed inside, and the heater is attached to the heat medium passage so that the device mounting surface and the rotation axis of the crankshaft are parallel to each other.
- the exhaust heat recovery device is attached to the heat medium passage with the device mounting surface provided in the heat medium passage and the rotation axis of the crankshaft being parallel.
- the respective pipe lengths of the cooler and the regenerator can be made uniform, so that the temperature distribution of the working fluid introduced into the second cylinder from the cooler can be reduced. As a result, a decrease in exhaust heat recovery efficiency is suppressed.
- the exhaust heat recovery device can be attached to the exhaust passage of the internal combustion engine, the exhaust passage for factory exhaust heat, and the like.
- the exhaust heat recovery device further comprises a first cylinder and a second cylinder, a first piston and a second piston reciprocating in the first cylinder and the second cylinder, A heat exchanger including a heater connected to the first cylinder, a regenerator connected to the heater, and a cooler connected to the regenerator and connected to the second cylinder; A crankshaft connected to the first piston and the second piston by a connecting rod to convert reciprocating motion into rotary motion, wherein the heater is disposed inside a heat medium passage through which the heat medium passes.
- the heat medium passage is attached to the heat medium passage such that a central axis of the heat medium passage is parallel to a rotation axis of the crankshaft.
- the pipe lengths of the cooler and the regenerator can be made uniform, so that the temperature distribution of the working fluid introduced into the second cylinder from the cooler can be reduced.
- the exhaust heat recovery device can be attached to the exhaust passage of the internal combustion engine, the exhaust passage for factory exhaust heat, and the like, while suppressing the decrease in the exhaust heat recovery efficiency.
- the exhaust heat recovery device is characterized in that, in the exhaust heat recovery device, the first cylinder is further arranged on the upstream side in the flow direction of the heat medium.
- the exhaust heat recovery device includes the configuration of the exhaust heat recovery device, and further has a first cylinder connected to the heater disposed upstream of the heat source medium and attached to the heat medium passage.
- the following exhaust heat recovery apparatus comprises a first cylinder and a second cylinder, a first piston and a second piston reciprocating in the first cylinder and the second cylinder, A heater connected to the first cylinder, a regenerator connected to the heater, and the regenerator Connected to the first cylinder and a cooler connected to the second cylinder, and connected to the first piston and the second piston by a connecting rod to convert a reciprocating motion into a rotary motion.
- a heating shaft wherein the heater is disposed inside a heat medium passage through which the heat medium passes, and the first cylinder is disposed upstream in a flow direction of the heat medium, and The second cylinder is attached to the heat medium passage such that the second cylinder is disposed downstream in the flow direction of the heat medium.
- the first cylinder connected to the heater is arranged on the upstream side of the heat source medium and attached to the heat medium passage.
- the working fluid heated by the high-temperature heat source medium is introduced into the first cylinder, so that the efficiency of collecting exhaust heat is improved.
- the second cylinder connected to the cooler is arranged downstream of the first cylinder, a preferable design for suppressing the pressure loss of the heat source medium is facilitated.
- an exhaust heat recovery apparatus is characterized in that, in the exhaust heat recovery apparatus, only the heater is disposed in the heat medium passage.
- an exhaust heat recovery device is characterized in that in the exhaust heat recovery device, the heater and the regenerator are arranged in the heat medium passage.
- the heater and the regenerator are arranged in the heat source medium passage, so that when the waste heat recovery device is mounted on the heat source medium passage, the mounting space is reduced. It comes out.
- an exhaust heat recovery device is characterized in that, in the exhaust heat recovery device, the first cylinder and the second cylinder are arranged in series.
- the exhaust heat recovery device in which the first cylinder and the second cylinder are arranged in series, if the heater is arranged in the heat medium passage, the pressure loss of the heat medium is reduced, and the internal combustion engine and the like are reduced. Thus, it is possible to suppress a decrease in the exhaust heat recovery efficiency while suppressing the effect of the exhaust pressure on the exhaust gas.
- the substrate in the exhaust heat recovery device, at least the first cylinder and the second cylinder are supported by a substrate, and the substrate is configured to discharge heat. It is characterized by being attached to the collection object.
- the substrate supporting the first and second cylinders which are components of the exhaust heat recovery device, serves as a position reference for each component of the exhaust heat recovery device. In this way, by using the substrate as a position reference for the components, the relative positional accuracy of the components can be ensured. In addition, since this substrate can be used as a reference when attaching the exhaust heat recovery device to the target of exhaust heat recovery, the mounting accuracy of the exhaust heat recovery device can be ensured.
- the exhaust heat recovery device is the exhaust heat recovery device, wherein when the exhaust heat recovery device is mounted on a vehicle, the crankshaft is substantially parallel to a floor of the vehicle. The output is taken from the crankshaft in a direction substantially perpendicular to the vertical direction of the vehicle.
- the device mounting surface provided in the heat medium passage is parallel to the heater connection side end surface and the cooler connection side end surface of the cylinder, and is mounted on the heat medium passage. I made it.
- the exhaust heat recovery device can be attached to the exhaust passage of the internal combustion engine, the exhaust heat exhaust passage of the factory, and the like while suppressing the decrease in the exhaust heat recovery efficiency.
- the first cylinder connected to the heater is arranged on the upstream side of the heat source medium and attached to the heat medium passage.
- the working fluid heated by the high-temperature heat source medium is introduced into the first cylinder, so that the exhaust heat recovery device can be improved and the exhaust heat recovery device can be connected to the exhaust passage of the internal combustion engine or the factory exhaust. It can be installed in heat discharge passages.
- FIG. 1 is a sectional view showing a Stirling engine according to the present invention.
- FIG. 2 is a cross-sectional view of the high-temperature side piston as viewed also in a directional force parallel to the crankshaft.
- FIG. 3 is an explanatory view of an air bearing that supports a piston.
- FIG. 4 is a schematic diagram illustrating a state in which a Stirling engine is attached to an exhaust passage of an internal combustion engine.
- FIG. 5 is an explanatory diagram showing a relationship between the Stirling engine according to the present invention and an exhaust passage.
- FIG. 6 is an explanatory diagram showing the relationship between the Stirling engine according to the present invention and an exhaust passage.
- FIG. 7 is an exploded view of a mounting structure of the Stirling engine and the exhaust passage according to the present invention.
- FIG. 8 is an exploded view of a mounting structure of the Stirling engine and the exhaust passage according to the present invention.
- FIG. 9 is an explanatory view showing an example in which the Stirling engine according to the present invention is mounted under the floor of a vehicle.
- FIG. 10 is an explanatory view showing an example in which the Stirling engine according to the present invention is mounted under the floor of a vehicle.
- FIG. 11 is an explanatory diagram showing an example of a mounting structure of the Stirling engine and the exhaust passage according to the present invention.
- FIG. 12 is an explanatory diagram showing an example of a mounting structure of the Stirling engine and the exhaust passage according to the present invention.
- FIG. 13 is an explanatory view showing an example of a mounting structure of the Stirling engine and the exhaust passage according to the present invention.
- FIG. 14 is an explanatory view showing an example of a mounting structure of the Stirling engine and the exhaust passage according to the present invention.
- FIG. 15 is an explanatory view showing an example of a mounting structure of the Stirling engine and the exhaust passage according to the present invention.
- FIG. 16 is an explanatory view showing an example of a mounting structure of the Stirling engine and the exhaust passage according to the present invention.
- FIG. 17 shows an example of a mounting structure of a Stirling engine and an exhaust passage according to the present invention.
- the present invention is not limited by the best mode for carrying out the present invention.
- constituent elements in the best mode for carrying out the invention include those that can be easily assumed by those skilled in the art or those that are substantially the same.
- a Stirling engine is used as an exhaust heat recovery device to recover the exhaust heat of an internal combustion engine.
- the target of the exhaust heat recovery is not limited to the internal combustion engine.
- the present invention can be applied to a case where waste heat of a power generation facility is recovered.
- FIG. 1 is a sectional view showing a Stirling engine according to the present invention.
- FIG. 2 is a cross-sectional view of the high-temperature-side piston viewed from a direction parallel to the crankshaft.
- FIG. 3 is an explanatory diagram of an air bearing that supports a piston.
- the Stirling engine 100 that is the exhaust heat recovery device according to the present invention is a so-called ⁇ -type in-line two-cylinder Stirling engine.
- a high-temperature side piston 102 as a first piston accommodated in a high-temperature side cylinder 101 as a first cylinder, and a low-temperature side piston as a second piston accommodated in a low-temperature side cylinder 103 as a second cylinder. 104 are arranged in series.
- the high-temperature side cylinder 101 and the low-temperature side cylinder 103 are supported by a substrate 10 as a reference body.
- the substrate 10 serves as a position reference for each component of the Stirling engine 100. With this configuration, it is possible to ensure the relative positional accuracy of the components.
- the substrate 10 has an advantage that it can be used as a reference when the Stirling engine 100 is attached to an exhaust passage or the like to be subjected to exhaust heat recovery. Thereby, the mounting accuracy of the stirling engine 100 can be secured.
- the high temperature side cylinder 101 and the low temperature side cylinder 103 are connected by a heat exchange 108 composed of a heater 105, a regenerator 106 and a cooler 107.
- a heat exchange 108 composed of a heater 105, a regenerator 106 and a cooler 107.
- one end of the heater 105 is connected to the high temperature side cylinder 101, and the other end is connected to the regenerator 106.
- the regenerator 106 has one end connected to the heater 105 and the other end connected to the cooler 107.
- One end of the cooler 107 is connected to the regenerator 106, and the other end is connected to the low temperature side cylinder 103.
- the working fluid is contained in the high temperature side cylinder 101, the low temperature side cylinder 103 and the heat exchange 108.
- the heater 105 and the cooler 107 may have a configuration in which a plurality of tubes made of a material having high heat conductivity and excellent heat resistance are bundled.
- the regenerator 106 can be formed of a porous heat storage body. The configuration of the heater 105, the cooler 107, and the regenerator 106 is not limited to this example, and a suitable configuration can be selected depending on the heat conditions of the exhaust heat recovery target, the specifications of the Stirling engine 100, and the like. .
- the high temperature side piston 102 and the low temperature side piston 104 are It is supported in the 103 via an air bearing 112.
- the structure is such that the piston is supported in the cylinder without passing through the piston ring.
- the friction between the piston and the cylinder can be reduced, and the thermal efficiency of the Stirling engine 100 can be improved.
- the Stirling engine 100 can be operated even under a low heat source and a low temperature difference operating condition such as exhaust heat recovery of an internal combustion engine.
- the interval tc between the high temperature side piston 102 and the high temperature side cylinder 101 is set to several tens / zm over the entire circumference of the high temperature side piston 102 and the like.
- the low temperature side piston 104 and the low temperature side cylinder 103 have the same configuration.
- the high temperature side cylinder 101, the high temperature side piston 102, the low temperature side cylinder 103, and the low temperature side piston 104 are made of glass.
- the high temperature side cylinder 101, the high temperature side piston 102, the low temperature side cylinder 103, and the low temperature side piston 104 are not limited to glass, and may be made of a high elastic material such as ceramics. These may be configured. Further, a metal material which can be easily processed may be used.
- the heater 105 of the heat exchanger 108 is arranged in a high-temperature heat source to heat the working fluid flowing inside. Therefore, the heat exchange 108 has a larger thermal expansion than the Stirling engine 100. Due to this thermal expansion, the center distance 1 between the center axes Zh and Z1 of the high temperature side cylinder 101 and the low temperature side cylinder 103 increases. As a result, the clearance between the cylinder and the piston cannot be maintained, and as a result, the function of the air bearing 112 may not be exhibited.
- the substrate 10 is disposed on the working fluid introduction sides 101i, 103i of the high temperature side and low temperature side cylinders 101, 103, and both cylinders are assembled to the substrate 10.
- the cylinders 101 and 103 on the high temperature side and the low temperature side are restrained, and an increase in the inter-axis distance 1 is suppressed.
- the clearance between the cylinder and the piston can be maintained and the air bearing 112 can be operated.
- the reciprocating motion of the high temperature side piston 102 and the low temperature side piston 104 is Is transmitted to the link shaft 110, where it is converted into rotary motion.
- the connecting rod 109 is supported by an approximate linear mechanism 113 shown in FIG. 2, and reciprocates the high temperature side piston 102 substantially linearly. Note that the approximate linear mechanism 113 uses a grasshopper mechanism. Since the connecting rod 109 is supported by the approximate linear mechanism 113 in this way, the side force F (force in the radial direction of the piston) of the high-temperature piston 102 becomes almost zero.
- the piston can be sufficiently supported by the bearing 112.
- the low temperature side piston 104 is also connected to the crankshaft 110 by the same configuration as the high temperature side piston 102.
- the crankshaft 110 is rotatably supported by a bearing 25 provided on the crankshaft support 20.
- the crankshaft support 20 is a plate-shaped member, and is fixed to the substrate 10.
- the approximate linear mechanism 113 is supported by an approximate linear mechanism support 26 provided on the crankshaft support 20.
- the crankshaft support 20 is fixed to the substrate 10 independently of the high temperature side and low temperature side cylinders 101 and 103, that is, so as not to come into contact with them.
- the high-temperature and low-temperature cylinders 101 and 103 are not affected by the vibration of the crankshaft 110 and the approximate linear mechanism 113 and the thermal expansion of the crankshaft 110, so that the function of the air bearing 112 is sufficiently ensured. Is done.
- each component of the Stirling engine 100 such as the high-temperature side cylinder 101, the high-temperature side piston 102, the crankshaft 110, and the approximate linear mechanism 113, is stored in a case 114.
- the inside of the case 114 is pressurized by the pressurizing means 115. This is because the working fluid (air in this embodiment) in the high-temperature and low-temperature cylinders 101 and 102 and the heat exchanger 108 is pressurized to extract more output from the Stirling engine 100.
- a seal bearing 116 is attached to the case 114, and the output shaft 117 is supported by the seal bearing 116.
- the output shaft 117 and the crankshaft 110 are connected via a flexible coupling 118, through which the output of the crankshaft 110 is transmitted to the outside of the case 114.
- an Oldham coupling is used as the flexible coupling 118.
- FIG. 4 is a schematic diagram illustrating a state in which a Stirling engine is attached to an exhaust passage of an internal combustion engine. 5 and 6 show the relationship between the Stirling engine according to the present invention and the exhaust passage.
- FIG. 4 When the Stirling engine 100, which is an exhaust heat recovery device, is used for exhaust heat recovery of an internal combustion engine, as shown in FIG. 4, at least the heater 105 of the heat exchanger 108 provided in the Stirling engine 100 is, for example, gasoline engine. It is disposed in an exhaust passage 122 of an internal combustion engine 120 such as a diesel engine or a diesel engine. As a result, the heater 105 of the heat exchanger 108 also recovers the heat energy from the exhaust G force of the internal combustion engine 120 as the heat medium. Note that the exhaust passage 122 of the internal combustion engine 120 corresponds to the heat medium passage according to the present invention.
- the heater connection side end face lOlit of the high temperature side cylinder 101 and the heater side end face 106ht of the regenerator 106 Preferably, the distance perpendicular to the surface is as small as possible, and preferably the two surfaces are flush.
- the total surface area of the heater 105 that can be arranged in the exhaust passage 122 can be increased, so that the exhaust heat recovery efficiency is improved.
- the working fluid heated by the heater 105 is introduced from the heater connection side end face lOlit.
- the heater 105 can be efficiently disposed in the exhaust passage 122, so that the efficiency of exhaust heat recovery is improved. Can be done. Further, the speed distribution and the temperature distribution of the working fluid introduced into the high temperature side cylinder 101 can be easily made uniform. Thus, a decrease in the thermal efficiency of Stirling engine 100 can be suppressed.
- the flush refers to not only the case where the heater connection side end face lOlit and the end face 106ht on the heater side of the regenerator 106 are completely on the same plane, but also includes the allowable range due to manufacturing tolerance. (The same applies hereinafter).
- the regenerator 106 may be arranged in the exhaust passage 122 as shown in FIG. In this way, since the heater 105 and the regenerator 106 are arranged in the exhaust passage 122, the space for mounting the Stirling engine 100 can be reduced. At this time, the heater connection side end face lOlit of the high temperature side cylinder 101 and the end face 107 rt on the regenerator side of the cooler 107 should minimize the distance between the faces perpendicular to each face as much as possible, and preferably the two faces are flush with each other.
- the heater 105 and the regenerator 106 can be efficiently arranged in the exhaust passage 122. Thus, the efficiency of recovering waste heat can be improved.
- the cooler 107 of the heat exchanger 108 is arranged between the low temperature side cylinder 103 of the Stirling engine 100 and the exhaust passage 122.
- the pipe length of the cooler 107 can be made uniform, and the pipe of the cooler 107 can be formed of a straight pipe.
- the temperature distribution of the working fluid introduced into the low-temperature side cylinder 103 can be reduced, and the pressure loss of the working fluid due to the cooler 107 can be suppressed, so that a decrease in the thermal efficiency of the Stirling engine 100 due to these can be suppressed.
- the exhaust passage 122 and the Stirling engine 100 are attached via a device mounting surface 123 provided in the exhaust passage 122.
- the Stirling engine 100 is mounted on the exhaust passage 122 so that the device mounting surface 123 is parallel to the heater connection side end surface 101it of the high temperature side cylinder 101 and the cooler connection side end surface 103it of the low temperature side cylinder 103.
- the Stirling engine 100 may be connected to the exhaust passage so that the device mounting surface 123 and the rotation axis Zr of the crankshaft are parallel or the center axis Zp of the exhaust passage 122 and the rotation axis Zr of the crankshaft are parallel. Attached to 122.
- the Stirling engine 100 can be easily attached to the exhaust passage 122 without making a significant design change to the existing exhaust passage.
- the heat exchange 108 of the Stirling engine 100 can be mounted in the exhaust passage 122 without impairing the performance, mountability, noise, and other functions of the internal combustion engine 120 that is the target of exhaust heat recovery.
- the Stirling engine 100 having the same specification is installed in a different exhaust passage, it can be coped with only by changing the specification of the heat exchanger 108, so that the versatility can be improved.
- FIG. 7 and FIG. 8 are exploded views of the structure for mounting the Stirling engine and the exhaust passage according to the present invention.
- the stirling engine 100 includes a device mounting surface 123 provided in an exhaust passage 122, a heater connection side end surface 101it of the high temperature side cylinder 101, and a cooler connection side end surface 103it of the low temperature side cylinder 103.
- the pipe lengths Lc and Lr of the cooler 107 and the regenerator 106 can be made uniform.
- the temperature distribution of the working fluid introduced into the low-temperature side cylinder 103 can be reduced, so that a decrease in the thermal efficiency of the Stirling engine 100 due to the temperature distribution of the working fluid is suppressed, and the exhaust heat recovery Efficiency reduction can be suppressed.
- the term “parallel” in the present invention includes not only perfect parallel but also a range allowed due to manufacturing tolerances (the same applies hereinafter). Even if the Stirling engine 100 is mounted so that the device mounting surface 123 is parallel to the crankshaft rotation axis Zr, or the center axis Zp of the exhaust passage 122 is parallel to the crankshaft rotation axis Zr, An effect similar to the effect obtained by the above configuration is obtained.
- the high-temperature side cylinder 101 and the high-temperature side piston 102 are arranged on the upstream side of the flow of the exhaust gas G, that is, on the internal combustion engine 120 side of the exhaust passage 122.
- the low-temperature side cylinder 103 and the low-temperature side piston 104 are arranged on the downstream side of the high-temperature side cylinder 101 and the like, that is, on the outlet 122 ⁇ side of the exhaust passage 122.
- the low-temperature side cylinder 103 and the like are arranged downstream of the high-temperature side cylinder 101 and the like, a preferable design for suppressing the pressure loss of exhaust gas becomes easy. As a result, the effect on the exhaust pressure of the internal combustion engine 120 can be reduced, and a decrease in performance can be suppressed. As a result, the overall thermal efficiency of the internal combustion engine 120 and the Stirling engine 100 can be improved.
- the working fluid cooled by the cooler 107 is introduced from the cooler connection side end face 103it.
- FIG. 9 and FIG. 10 are explanatory views showing examples in which the Stirling engine according to the present invention is mounted under the floor of a vehicle.
- the arrangement direction of the high temperature side cylinder 101 and the low temperature side cylinder 103 is parallel to the rotation axis Zr of the crankshaft 110 (see FIG. 1).
- the device mounting surface 123 and the crankshaft 110 become parallel.
- the crankshaft 110 which is the output shaft of the Stirling engine 100 Force is substantially parallel to the floor 131 of the vehicle 130. Be placed. That is, the crankshaft 110 is substantially perpendicular to the vertical direction of the vehicle 130 (the Y direction in the figure).
- This allows Starry The output of the engine 100 is taken out in a direction substantially perpendicular to the vertical direction of the vehicle 130 (the direction of the arrow Y in the figure) rather than the vertical direction of the vehicle 130, so that space can be saved in the vertical direction of the vehicle. Can be. Further, the mountability on the vehicle 130 is improved.
- FIGS. 11 to 17 are explanatory views showing an example of a mounting structure of the Stirling engine and the exhaust passage according to the present invention.
- the exhaust heat recovery device mounting portion 124 of the Stirling engine 100 is inserted into the exhaust passage 122, and the exhaust heat recovery device mounting flange 123 of the exhaust heat recovery device mounting portion 124 (device mounting). Attach the Stirling engine 100 to face 123).
- FIG. 12 is a view of FIG. 11 in which the force in the direction of arrow A is also observed.
- an opening 123 ⁇ is formed in the exhaust heat recovery device mounting flange 123 to incorporate the heat exchange 108 of the Stirling engine 100.
- the exhaust heat recovery device mounting portion 124 can be manufactured, for example, by manufacturing.
- FIG. 14 is a diagram of FIG. 13 viewed from the direction of arrow ⁇ .
- the regenerator 106 is also disposed in the exhaust passage 122, the heater 105 and the regenerator 106 are attached to the heat exchange mounting flange 125 as shown in FIG.
- a first connection flange 127a is provided on the working fluid introduction side of the high temperature side cylinder 101 of the Stirling engine 100, that is, on the heater 105 side.
- a cooler 107 and a regenerator 106 are attached to the working fluid introduction side of the low temperature side cylinder 103, that is, the cooler 107 side, and a second connection flange 127b is provided on a heater connection side of the regenerator 106. .
- the heat exchange mounting flange 125 to which the heater 105 is mounted and the first and second connection flanges 127 a and 127 b are fastened with bolts 128. Then, as shown in FIG. 17, at least the heat exchange mounting flange 125 to which the heater 105 is mounted and the exhaust heat recovery device mounting flange 123 are fastened by bolts 126 to connect at least the heater 105 of the Stirling engine 100 to the exhaust passage 122. Attach to
- heat exchange 108 is formed, and Stirling engine 100 is attached to exhaust passage 122.
- a connecting member 129 is provided between the substrate 10 of the Stirling engine 100 and the exhaust heat recovery device mounting flange 123 to connect the two. This allows The Stirling engine 100 can be reliably fixed to the exhaust passage 122. Further, if the connecting member 129 has a function as a strength member, it is possible to prevent an excessive force from acting on the high temperature side cylinder 101 and the cooler 107.
- the substrate 10 of the Stirling engine 100 be used as a mounting reference for the exhaust heat recovery device mounting flange 123.
- the positional relationship between the exhaust heat recovery device mounting flange 123 (device mounting surface 123) and the heater connection side end surface lOlit of the high temperature side cylinder 101 can be accurately and easily obtained. it can.
- the exhaust heat recovery device mounting portion 124 to which the Stirling engine 100 is mounted is mounted on the exhaust passage 122 by fixing a mounting flange 124f provided thereon and a mounting flange 122f provided in the exhaust passage 122.
- the heat exchange mounting flange 125 may also be used as the substrate 10 of the Stirling engine 100.
- the exhaust heat recovery device mounting flange 123 may also be used as the substrate 10 of the Stirling engine 100.
- the device mounting surface provided in the heat medium passage, the high temperature side cylinder and the low temperature side
- the heater is mounted so that the heater connection side end face and the cooler connection side end face are parallel to each other.
- the device mounting surface may be parallel to the rotation axis of the crankshaft of the exhaust heat recovery device, or the center axis Zp of the exhaust passage may be parallel to the rotation axis of the crankshaft of the exhaust heat recovery device. Attach the exhaust heat recovery device. This makes it possible to make the pipe lengths of the cooler and the regenerator uniform, thereby reducing the temperature distribution and the speed distribution of the working fluid introduced into the low temperature side cylinder.
- the exhaust heat recovery device can be easily attached to the heat medium passage.
- the high temperature side cylinder is disposed on the upstream side of the flow of the heat medium, and the low temperature side cylinder is disposed on the downstream side of the high temperature side cylinder.
- the working fluid heated by the high-temperature heat medium is guided into the high-temperature side cylinder.
- the efficiency of recovering waste heat is improved.
- the low-temperature side cylinder is arranged downstream of the high-temperature side cylinder, it is preferable for suppressing the pressure loss of the heat medium, and the design becomes easy.
- the heat of the internal combustion engine also collects the exhaust heat
- the influence on the exhaust pressure can be reduced, and the thermal efficiency of the entire internal combustion engine and the exhaust heat recovery device can be improved.
- the exhaust heat recovery device is useful for exhaust heat recovery in an internal combustion engine or a factory, and is particularly suitable when the temperature level of the exhaust heat is relatively low.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04788111A EP1722091A4 (en) | 2003-10-01 | 2004-09-24 | WASTE HEAT RECOVERY DEVICE |
US11/346,204 US7458216B2 (en) | 2003-10-01 | 2006-02-03 | Exhaust heat recovery apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003343417A JP3788453B2 (ja) | 2003-10-01 | 2003-10-01 | 排熱回収装置 |
JP2003-343417 | 2003-10-01 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/346,204 Continuation US7458216B2 (en) | 2003-10-01 | 2006-02-03 | Exhaust heat recovery apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005033497A1 true WO2005033497A1 (ja) | 2005-04-14 |
Family
ID=34419296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/013952 WO2005033497A1 (ja) | 2003-10-01 | 2004-09-24 | 排熱回収装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7458216B2 (ja) |
EP (1) | EP1722091A4 (ja) |
JP (1) | JP3788453B2 (ja) |
CN (1) | CN100516492C (ja) |
WO (1) | WO2005033497A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7603857B2 (en) | 2005-06-29 | 2009-10-20 | Toyota Jidosha Kabushiki Kaisha | Exhaust heat recovery apparatus |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4524396B2 (ja) * | 2004-10-20 | 2010-08-18 | 独立行政法人海上技術安全研究所 | 廃熱回収装置 |
US7490469B2 (en) * | 2006-08-07 | 2009-02-17 | United Technologies Corporation | Dual-function stirling engine system |
JP4803140B2 (ja) * | 2007-08-27 | 2011-10-26 | トヨタ自動車株式会社 | ピストン機関及びスターリングエンジン |
US8726661B2 (en) | 2010-08-09 | 2014-05-20 | GM Global Technology Operations LLC | Hybrid powertrain system including an internal combustion engine and a stirling engine |
JP4848058B1 (ja) * | 2011-07-15 | 2011-12-28 | 亮 渡邉 | スターリングエンジン |
JP5532034B2 (ja) * | 2011-09-26 | 2014-06-25 | トヨタ自動車株式会社 | スターリングエンジン |
CN102691555B (zh) * | 2012-04-12 | 2014-04-16 | 北京工业大学 | 带蓄热器的内燃机排气余热回收系统及控制方法 |
CN102678385B (zh) * | 2012-05-25 | 2014-11-12 | 华南理工大学 | 基于斯特林发电机的尾气余热发电和尾气净化系统 |
BR102017008588A2 (pt) * | 2017-04-26 | 2018-11-21 | Associacao Paranaense De Cultura - Apc | motor de ciclo combinado diesel e diferencial-isotérmico-isocórico regenerativo e processo de controle para o ciclo termodinâmico do motor de ciclo combinado |
BR102017008590A2 (pt) * | 2017-04-26 | 2018-11-21 | Associacao Paranaense De Cultura - Apc | motor de ciclo combinado diesel e diferencial-isobárico-isocórico regenerativo e processo de controle para o ciclo termodinâmico do motor de ciclo combinado |
CN108731532B (zh) * | 2018-05-31 | 2019-12-31 | 贵州环科环境工程有限公司 | 高温烟气降温装置 |
BR102018015947A2 (pt) * | 2018-08-03 | 2020-02-27 | Saulo Finco | Motor de combustão interna integrado formado por uma unidade principal de ciclo diesel e uma unidade secundária a pistões e processo de controle para o ciclo termodinâmico do motor |
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-
2003
- 2003-10-01 JP JP2003343417A patent/JP3788453B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-24 WO PCT/JP2004/013952 patent/WO2005033497A1/ja active Application Filing
- 2004-09-24 CN CNB2004800286395A patent/CN100516492C/zh not_active Expired - Fee Related
- 2004-09-24 EP EP04788111A patent/EP1722091A4/en not_active Withdrawn
-
2006
- 2006-02-03 US US11/346,204 patent/US7458216B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS4997139A (ja) * | 1973-01-02 | 1974-09-13 | ||
JPS58192951A (ja) * | 1982-05-01 | 1983-11-10 | Nissan Motor Co Ltd | 熱ガス機関のヒ−タ |
Non-Patent Citations (1)
Title |
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See also references of EP1722091A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7603857B2 (en) | 2005-06-29 | 2009-10-20 | Toyota Jidosha Kabushiki Kaisha | Exhaust heat recovery apparatus |
Also Published As
Publication number | Publication date |
---|---|
CN100516492C (zh) | 2009-07-22 |
CN1864002A (zh) | 2006-11-15 |
US7458216B2 (en) | 2008-12-02 |
JP3788453B2 (ja) | 2006-06-21 |
JP2005106010A (ja) | 2005-04-21 |
EP1722091A4 (en) | 2012-05-23 |
EP1722091A1 (en) | 2006-11-15 |
US20060123779A1 (en) | 2006-06-15 |
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